package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import io.swagger.annotations.Api;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Api(tags = "分类管理")
@Service
public class CategoryServicelmpl implements CategoryService {
    @Autowired
    CategoryMapper categoryMapper;

    @Autowired
    DishMapper dishMapper;

    @Autowired
    SetmealMapper setmealMapper;

    //根据id删除
    @Override
    public void Delecategory(Long id) {
        //查询当前分类是否关联了菜品，如果关联了就抛出业务异常
        //1.查询当前分类下是否存在与之关联菜品：select *from where cateory_id = id
        Integer dishCount = dishMapper.countByCategoryId(id);
        if (dishCount != null && dishCount != 0) {
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);
        }
        //2.查询当前分类下是否存在与之关联套餐：select *from setmeal where cotegory_id = id
        Integer setmealCount = setmealMapper.countByCategoryId(id);
        if (setmealCount != null && setmealCount != 0) {
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
        }
        // 删除分类数据
        categoryMapper.Delecategory(id);
    }

    //启用，禁用
    @Override
    public void Enabledisable(Integer status, Integer id) {
        categoryMapper.Enabledisable(status, id);
    }

    // 新增
    @Override
    public void save(CategoryDTO categoryDTO) {
        Category category = new Category();
        //属性拷贝
        BeanUtils.copyProperties(categoryDTO, category);

        //分类状态默认为禁用状态0
        category.setStatus(StatusConstant.DISABLE);

        //设置创建时间、修改时间、创建人、修改人
        category.setCreateTime(LocalDateTime.now());
        category.setUpdateTime(LocalDateTime.now());
        category.setCreateUser(BaseContext.getCurrentId());
        category.setUpdateUser(BaseContext.getCurrentId());

        categoryMapper.Addcategory(category);
    }

    /*
     * 根据类型查询分类
     *
     * */
    @Override
    public List<Category> list(Integer type) {
        return categoryMapper.list(type);

    }

    //修改
    @Override
    public void ModifyPagination(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO, category);

        // 设置修改时间，修改人
        category.setUpdateTime(LocalDateTime.now());
        category.setUpdateUser(BaseContext.getCurrentId());

        categoryMapper.update(category);
    }

    //分页+条件查询
    @Override
    public PageResult PagingQuery(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(), categoryPageQueryDTO.getPageSize());

        Page page = (Page) categoryMapper.PagingQuery(categoryPageQueryDTO);

        PageResult pageResult = new PageResult();
        pageResult.setTotal(page.getTotal());
        pageResult.setRecords(page.getResult());
        return pageResult;

    }
}
